English verb conjugation
MUST PETTIFOG

Regular verb: pettifog - pettifoged - pettifoged

Affirmation

Simple form	V-ing form
I must pettifog you must pettifog he must pettifog we must pettifog you must pettifog they must pettifog	I must be pettifoging you must be pettifoging he must be pettifoging we must be pettifoging you must be pettifoging they must be pettifoging
Perfect	V-ing perfect
I must have pettifoged you must have pettifoged he must have pettifoged we must have pettifoged you must have pettifoged they must have pettifoged	I must have been pettifoging you must have been pettifoging he must have been pettifoging we must have been pettifoging you must have been pettifoging they must have been pettifoging

Negation

Simple form	V-ing form
I mustn't pettifog you mustn't pettifog he mustn't pettifog we mustn't pettifog you mustn't pettifog they mustn't pettifog	I mustn't be pettifoging you mustn't be pettifoging he mustn't be pettifoging we mustn't be pettifoging you mustn't be pettifoging they mustn't be pettifoging
Perfect	V-ing perfect
I mustn't have pettifoged you mustn't have pettifoged he mustn't have pettifoged we mustn't have pettifoged you mustn't have pettifoged they mustn't have pettifoged	I mustn't have been pettifoging you mustn't have been pettifoging he mustn't have been pettifoging we mustn't have been pettifoging you mustn't have been pettifoging they mustn't have been pettifoging

Interrogative form

Simple form	V-ing form
must I pettifog? must you pettifog? must he pettifog? must we pettifog? must you pettifog? must they pettifog?	must I be pettifoging? must you be pettifoging? must he be pettifoging? must we be pettifoging? must you be pettifoging? must they be pettifoging?
Perfect	V-ing perfect
must I have pettifoged? must you have pettifoged? must he have pettifoged? must we have pettifoged? must you have pettifoged? must they have pettifoged?	must I have been pettifoging? must you have been pettifoging? must he have been pettifoging? must we have been pettifoging? must you have been pettifoging? must they have been pettifoging?

Interro-negative form

Simple form	V-ing form
mustn't I pettifog? mustn't you pettifog? mustn't he pettifog? mustn't we pettifog? mustn't you pettifog? mustn't they pettifog?	mustn't I be pettifoging? mustn't you be pettifoging? mustn't he be pettifoging? mustn't we be pettifoging? mustn't you be pettifoging? mustn't they be pettifoging?
Perfect	V-ing perfect
mustn't I have pettifoged? mustn't you have pettifoged? mustn't he have pettifoged? mustn't we have pettifoged? mustn't you have pettifoged? mustn't they have pettifoged?	mustn't I have been pettifoging? mustn't you have been pettifoging? mustn't he have been pettifoging? mustn't we have been pettifoging? mustn't you have been pettifoging? mustn't they have been pettifoging?